Ensuring that food is kosher for Passover is even more difficult than during the rest of the year because many of the ingredients that are routinely used and are produced under kosher supervision are not kosher for Passover. Nothing can be used containing the following foods which are considered chometz: barley, wheat, rye, oats, and spelt except for matzoh and matzoh meal products which are flour and water mixed together and baked in less than eighteen minutes under rabbinic supervision. Many routinely used ingredients such as malt which is made from barley which is are chometz ingredients. Unintended contamination is also common. "Gluten-free grains, seeds, pulses, beans and legumes can share many steps of the supply chain with GCGs, including being grown in the same fields, harvested with the same equipment, transported on the same vehicles, stored in the same facilities and processed in the same mills." www.foodmanufacturing.com
In addition most American Jews are Ashkenazim (of Eastern or Western European descent) and do not use kitniot: legumes (such as soy, peanuts, and peas), corn, rice and mustard flour. These are the basis of many functional food ingredients (list at www.kashrut.com/Passover/kitniot_list). Most Israeli Jews are Sephardim; so many products produced in Israel for Passover contain kitniot and are therefore not kosher for Passover for Ashkenazim. Some of the problematic ingredients include lecithin, corn syrup, cornstarch, rice, peanuts, soybean and canola oil. The major American kosher agencies including the OU, Star-K, and the OK are now certifying products containing kitniot for Passover. These products say that they contain kitniot and are usable for people who eat kitniot. More and products are being sold in the Passover section of American supermarkets containing kitniot. Some examples follow:
Marshmallows are a product which has had Pasover and kashrus problems in the past. The main ingredient of marshmallows is gelatin. In previous years, most of the Passover marshmallows on the market is made from beef hides from non-kosher slaughtered animals. This is a controversial ingredient that the major Orthodox Certifying agencies in the United States do not accept as kosher. This year the marshmallows that I saw at the market are certified by the OU or other reputable agencies made from fish gelatin or kosher certified beef hides.
On Passover, even the type of oil used becomes important, since the standard corn, canola and soybean oils cannot be used. Cottonseed oil, grapeseed,olive oil, walnut oil and safflower oil, become the oils of choice for Passover. Special runs for products need to be made for Passover using these oils. Products, such as canned tuna which contain vegetable oil and hydrolyzed vegetable protein need to be supervised as to the source, since soybeans are commonly used.
Manufacturers are not required to list processing aids on the label. Processing aids are added during the manufacturing of a product, such as the oils for greasing pans in a bakery. These ingredients are not considered to be part of the final product and so are not required to be listed on the label but may still be present. Enzymes may be used in the production of the product or an ingredient that may have a chometz or kitniot origin.
In addition other foods should not come into contact with any chometz or they become unusable for Passover. An example of a product which could have this problem is frozen vegetables made on a production line previously used for pasta.
There are many innocuous appearing products which need kashrus certification during the year and particularly on Passover. Some of these products are sodas (flavored carbonated beverages), dried fruits, raisins and candies.
Kosher for Passover sodas must contain kosher for Passover
ingredients. Sodas sold for everyday use contain a number of
ingredients which are not kosher for Passover. Corn syrup is the
everyday sweetener of choice, since it is cheaper for the manufacturer
than cane sugar. Passover formulations must contain cane sugar. Sodas
contain flavorings and colorings that may contain grain based alcohol
which is not kosher for Passover. Everyday sodas also need kosher
certification for everyday use since a number of innocuous sounding
ingredients may be non-kosher. For example colorings and flavorings
could be of animal, insect or grape origins especially in "all natural"
products. Natural flavorings include civet (from cat), musk (from ox),
castoreum (from beaver), ambergris (from whales) and grapes. (Kashrus
Magazine, April, 1987, p. 60) Oils are used in some sodas and these
A list of Acceptable sodas during the year (not for Passover) can be found on www.kashrut.com/consumer/soda.
Dried fruits and raisins need to have kosher certification year-round and special certification on Passover. Producers put oils or waxes on the raisins to prevent clumping. Glycerol is also added to raisins to keep them moist, these need to have proper kosher for Passover certification. Because of this use of oil or other processing agents, raisins and dried fruit need to have kosher certification even for year-around use even when labeled "all natural". Dried fruit and raisins may also be dried in ovens used for processing chometz.
Non-Passover products on store Passover shelves is a problem. This problem is due to mistakes by the retailer or wholesaler. The misplaced product can be for many unintentional reasons, the wrong product was delivered, the label of the product is the some except for the "P", or the retailer sees Hebrew on the label and assumes the product must be for Passover. Consumers must check every product that they purchase to prevent mistakes.
Modern technology also helps in the preparation of a kosher Passover. The Internet enables information about products, alerts and procedures to be available worldwide in a timely manner. Kashrut.com at https://www.kashrut.com/Passover gathers the information in one place from Kosher certifying agencies from around the world and updates this information as necessary.
Keeping kosher for Passover requires vigilance and education on the part of the consumer, with the reward of a chag kasher vi sameach ( a kosher and happy holiday).
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